Holtop adapanga zida zatsopano zotsitsira kutentha, zomwe zimakhala ndi zida zosinthira kutentha zamtundu wa aluminiyamu. Kuchita bwino kumatha kukhala mpaka 85%, ndipo ndiye gawo lotsogola laukadaulo wobwezeretsa kutentha ku China.
Chatsopano: Counterflow mbale kutentha exchanger HRV
